Updated README.md for bridges (#2629)

* Updated README.md

* Update BRIDGES.md

Co-authored-by: Squirrel <gilescope@gmail.com>

---------

Co-authored-by: Squirrel <gilescope@gmail.com>

cumulus/BRIDGES.md

@@ -18,13 +18,16 @@ it easier to import that change back to upstream repo.
 
 # 2. How to pull latest Bridges code to the `bridges` subtree
 (in practice)
+
+The `bridges` repo has a stabilized branch `polkadot-staging` dedicated for releasing.
+
 ```
 cd <cumulus-git-repo-dir>
 
 # this will update new git branches from bridges repo
 # there could be unresolved conflicts, but dont worry,
 # lots of them are caused because of removed unneeded files with patch step,
-./scripts/bridges_update_subtree.sh fetch
+BRANCH=polkadot-staging ./scripts/bridges_update_subtree.sh fetch
 
 # so, after fetch and before solving conflicts just run patch,
 # this will remove unneeded files and checks if subtree modules compiles
@@ -68,8 +71,8 @@ $ git remote add -f my-bridges git@github.com:tomusdrw/parity-bridges-common.git
 
 2. To update Bridges:
 ```
-$ git fetch bridges master
-$ git subtree pull --prefix=bridges bridges master --squash
+$ git fetch bridges polkadot-staging
+$ git subtree pull --prefix=bridges bridges polkadot-staging --squash
 ````
 
 We use `--squash` to avoid adding individual commits and rather squashing them
@@ -82,7 +85,7 @@ all into one.
 
 4. Contributing back to Bridges (creating upstream PR)
 ```
-$ git subtree push --prefix=bridges my-bridges master
+$ git subtree push --prefix=bridges my-bridges polkadot-staging
 ```
 This command will push changes to your personal fork of Bridges repo, from where
 you can simply create a PR to the main repo.

cumulus/parachains/runtimes/bridge-hubs/README.md

@@ -36,10 +36,12 @@ The current trustless bridges planned for the BridgeHub(s) are:
 mkdir -p ~/local_bridge_testing/bin
 mkdir -p ~/local_bridge_testing/logs
 
+---
 # 1. Install zombienet
 Go to: https://github.com/paritytech/zombienet/releases
 Copy the apropriate binary (zombienet-linux) from the latest release to ~/local_bridge_testing/bin
 
+---
 # 2. Build polkadot binary
 git clone https://github.com/paritytech/polkadot.git
 cd polkadot
@@ -52,23 +54,33 @@ cd polkadot
 cargo build --release --features fast-runtime
 cp target/release/polkadot ~/local_bridge_testing/bin/polkadot
 
+---
 # 3. Build cumulus polkadot-parachain binary
 cd <cumulus-git-repo-dir>
+
 # checkout desired branch or use master:
-# git checkout -b bridge-hub-rococo-wococo --track origin/bridge-hub-rococo-wococo
-git checkout -b master --track origin/master
+# git checkout -b master --track origin/master
+
 cargo build --release --locked -p polkadot-parachain-bin
 cp target/release/polkadot-parachain ~/local_bridge_testing/bin/polkadot-parachain
 cp target/release/polkadot-parachain ~/local_bridge_testing/bin/polkadot-parachain-mint
 
+---
 # 4. Build substrate-relay binary
 git clone https://github.com/paritytech/parity-bridges-common.git
 cd parity-bridges-common
+
+# checkout desired branch or use master:
+# git checkout -b master --track origin/master
+git checkout -b polkadot-staging --track origin/polkadot-staging
+
 cargo build --release -p substrate-relay
 cp target/release/substrate-relay ~/local_bridge_testing/bin/substrate-relay
 
-# (Optional) 5. Build polkadot-parachain-mint binary with statemine/westmint for moving assets
+---
+# 5. Build polkadot-parachain-mint binary with statemine/westmint for moving assets
 cd <cumulus-git-repo-dir>
+# TODO:check-parameter - change this when merged to master
 git checkout -b bko-transfer-asset-via-bridge --track origin/bko-transfer-asset-via-bridge
 cargo build --release --locked -p polkadot-parachain-bin
 cp target/release/polkadot-parachain ~/local_bridge_testing/bin/polkadot-parachain-mint